Development/Guidelines

Guidelines used internally, related to UI design and consistency. The section about policies also contains standards-like documents that relate to developer activity.

Human Interface Guidelines

Accessibility and Usability Checklists

Test your application for accessibility/usability along these checklists

Community Identity Guidelines (CIG)

Definitions and recommendations which help the KDE Project to establish a unique, characteristic, and appealing design.

Plasma Interface Guidelines (PIG)

This document is a place to collect all the "do"s, "don't"s and "how to"s for interface elements in Plasma, particularly applets and plasmoids.

KDE Human Interface Guidelines (HIG)

Guidelines for designing user interfaces.